TranspirationTranspiration is the process whereby plants expel water. Water is absorbed by the rootsand travels in vessels up the stem called xylem tubes to the leaves. There are pores onthe leaves called stomata, surrounded by guard cells. When the plant has lots of water,the pressure of the turgidity forces the guard cells open, and water is lost through thestomata. When the plant has little water and is flaccid, the guard cells stay closed, andtranspiration comes to a stop. Factors affecting transpiration are the light level, wind,humidity, and temperature.Nutrients Needed By Plants Nitrates Potassium Phosphate What do they do? Used to build proteins A necessity for A necessity for and essential for photosynthesis and photosynthesis and growth. respiration. respiration. What happens when There will be yellow There will be poor There will be poor there is a deficiency? leaves and poor flower and fruit root growth and growth. growth and discoloured leaves. discoloured leaves. Explanation All amino acids contain Potassium must be Phosphate a key nitrogen. Amino acids present for component of DNA are the building blocks photosynthesis and molecules and all of proteins. respiration enzymes to membranes. function.The HeartThe heart has four chambers; they are the left ventricle, left atrium, rightventricle and the right atrium. The heart has four main blood vessels; theyare the vena cava, the pulmonary artery, the aorta and the pulmonary vein.The heart has four valves, they are; the mitrial valve (also known as thebicuspid valve), tricuspid valve, aortic valve and the pulmonary valve.Coronary arteries provide the heart with a blood supply. The blood travels through the vena cave into the right atrium. It then enters the right ventricle and exits through the pulmonary artery where it travels to the lungs. At the lungs, the haemoglobin picks up oxygen and become oxyhaemoglobin. The blood then travels from the lungs through the pulmonary vein into the left atrium. The blood then travels into the right ventricle and out through the aorta. The blood then travel to the body and back into the left atrium through the vena cava.

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Blood VesselsArteries: When blood flows out of the heart it enters the arteries. Blood inthe arteries is at a high pressure. Because of this, arteries need strong wallsto withstand this pressure. They have elastic tissue in their walls whichstretch and recoil with the force.Veins: In the veins, the blood is under much lower pressure. The bloodslows much more slowly, so there is no need for veins to have such thick,strong elastic walls.…read more

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Removal of urea: Proteins can't be stored by the body, so excess proteins (amino acids) are brokendown in the liver into fats and carbohydrates. The waste product of the breaking down process isurea. Urea is toxic to the body so it must be expelled somehow. Urea is passed into the blood and isfiltered out by the kidneys; it then enters the bladder as urine and is excreted.…read more

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In a dialysis machine, the person's blood flows alongside aselectively permeable barrier, surrounded by dialysis fluid. The dialysis fluid has the sameconcentration of dissolved ions and glucose as normal blood, therefore, only waste substancesdiffuse across the barrier.Pros and cons of dialysis and kidney transplants:Dialysis, Pros: Allows you to live a reasonable life and can be used long term.Cons: Takes up a lot of time and can be draining.…read more

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Size: Some fungi can actually be seen with the naked eye, others are slightly bigger than bacteriacells.Examples: Penicillium and yeast.Shape: Variable.Reproduction: Yeast reproduces by budding.White Blood Cells If we have a cut on our body, then this is an easy route for any pathogens to enter, this is why our blood clots very quickly to seal a wound. The two proteins involved in clotting are platelets and fibrins. Some white blood cells ingest bacteria.…read more

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It's not working, for me it open up a random document for of links from this website where everytime I press something it redirects to this site and doesn't actually allow me to view anything :/ (if that make sense?)